Empty PTB carts with cap or just caps?

[mizuhi]

I have a few extra PTB carts for my Joye 510 but buying them empty, they came with no caps.
I like pre-filling carts so I dont have to worry about topping off when busy.

Pre-filling without a cap for the cart causes them to leak juice out.
I need caps or carts that come with caps.

I cant find a supplier that sells empty ptb carts with caps or just caps.

Be great if someone sold just the caps since those little buggers are easy to loose.

So anyone sell caps for carts?

 

[RobertY]

That would be nice since I have also lost a few caps from my 510 carts.